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qapi event: convert BLOCK_IMAGE_CORRUPTED
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Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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Wenchao Xia authored and Luiz Capitulino committed Jun 23, 2014
1 parent 5a2d2cb commit c120f0f
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Showing 3 changed files with 32 additions and 28 deletions.
14 changes: 8 additions & 6 deletions block/qcow2-refcount.c
Expand Up @@ -27,6 +27,7 @@
#include "block/qcow2.h"
#include "qemu/range.h"
#include "qapi/qmp/types.h"
#include "qapi-event.h"

static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size);
static int QEMU_WARN_UNUSED_RESULT update_refcount(BlockDriverState *bs,
Expand Down Expand Up @@ -1807,7 +1808,6 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
} else if (ret > 0) {
int metadata_ol_bitnr = ffs(ret) - 1;
char *message;
QObject *data;

assert(metadata_ol_bitnr < QCOW2_OL_MAX_BITNR);

Expand All @@ -1816,12 +1816,14 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
metadata_ol_names[metadata_ol_bitnr]);
message = g_strdup_printf("Prevented %s overwrite",
metadata_ol_names[metadata_ol_bitnr]);
data = qobject_from_jsonf("{ 'device': %s, 'msg': %s, 'offset': %"
PRId64 ", 'size': %" PRId64 " }", bs->device_name, message,
offset, size);
monitor_protocol_event(QEVENT_BLOCK_IMAGE_CORRUPTED, data);
qapi_event_send_block_image_corrupted(bdrv_get_device_name(bs),
message,
true,
offset,
true,
size,
&error_abort);
g_free(message);
qobject_decref(data);

qcow2_mark_corrupt(bs);
bs->drv = NULL; /* make BDS unusable */
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22 changes: 0 additions & 22 deletions docs/qmp/qmp-events.txt
Expand Up @@ -28,28 +28,6 @@ Example:
"data": { "actual": 944766976 },
"timestamp": { "seconds": 1267020223, "microseconds": 435656 } }

BLOCK_IMAGE_CORRUPTED
---------------------

Emitted when a disk image is being marked corrupt.

Data:

- "device": Device name (json-string)
- "msg": Informative message (e.g., reason for the corruption) (json-string)
- "offset": If the corruption resulted from an image access, this is the access
offset into the image (json-int)
- "size": If the corruption resulted from an image access, this is the access
size (json-int)

Example:

{ "event": "BLOCK_IMAGE_CORRUPTED",
"data": { "device": "ide0-hd0",
"msg": "Prevented active L1 table overwrite", "offset": 196608,
"size": 65536 },
"timestamp": { "seconds": 1378126126, "microseconds": 966463 } }

BLOCK_JOB_CANCELLED
-------------------

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24 changes: 24 additions & 0 deletions qapi/block-core.json
Expand Up @@ -1428,6 +1428,30 @@
'data': [ 'ignore', 'report', 'stop' ] }


##
# @BLOCK_IMAGE_CORRUPTED
#
# Emitted when a disk image is being marked corrupt
#
# @device: device name
#
# @msg: informative message for human consumption, such as the kind of
# corruption being detected
#
# @offset: #optional, if the corruption resulted from an image access, this is
# the access offset into the image
#
# @size: #optional, if the corruption resulted from an image access, this is
# the access size
#
# Since: 1.7
##
{ 'event': 'BLOCK_IMAGE_CORRUPTED',
'data': { 'device' : 'str',
'msg' : 'str',
'*offset': 'int',
'*size' : 'int' } }

##
# @BLOCK_IO_ERROR
#
Expand Down

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